What about J-B bore cleaner?

mbsams

I have a Ruger 77 MKII in 280 that to me shows all the signs of a rough bore. It is a bear to clean - copper fouling happens with only a few shots and is very difficult to remove with Sweet's 7.62 or Barnes CR10. But before going after the copper, I use Hopes #9 for the powder fouling. Again very hard to get clean. I use dozens of patches and hours to clean this thing. Its not exactly a tack driver either. Inch and a half groups at 100 seem to be its best. I am thinking I can improve things with a lot of strokes with the J-B. Comments please.

dcs shooters

The J-B works very good on rough bores.
It depends on how rough it is, as how long it takes to clean it up.

perry shooter

+1 another vote for J.B.

11b6r

Have used JB to smooth a rough bore. Does good.

CapnMidnight

Another vote for JB, I've used it for years with good results.
W.D.

jonk

While I really like JB, if it is really a rough bore you might investigate a bore lapping kit.

USN_Airdale

JB=axle grease+ 800 grit diamond lapping "dust"

an old time shooter i once knew (about 40+ years ago) told me about this stuff and gave me a container about the size of the JB jar full, and i still have what i consider a "life time supply"

mrbruce

JB will be very time consuming, you'll be better off with the gritty bullets from David Tubbs and then a bit of JB paste..

zimmden

+1 for mrbruce. I've used Tubbs polishing bullets followed by JB paste. The smoothness of cleaning patches in the bore is very noticeable. Accuracy of my M70 in 22-250 was still at or below 1 MOA after 4000 rounds even though the throat was eroded over .250".

butchlambert

You will wear yourself out before you would ever wear a barrel out. It is good for fouling on a good barrel, but it will not smooth out a rough bore.
Butch

He Dog

quote:Originally posted by butchlambert
You will wear yourself out before you would ever wear a barrel out. It is good for fouling on a good barrel, but it will not smooth out a rough bore.
Butch


X-Ring.